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What is the CRASH Energy Correction Factor (ECF)?

Posted: Fri Oct 16, 2009 11:12 am
by brian
Q: What is the Energy Correction Factor (ECF) used in Damage Analysis?
A: Crush properties of vehicles are measured and fitted for crush directions that are perpendicular to the involved end or side of a vehicle. However, in an oblique collision, a component of the tangential friction force acts to increase the effective crush resistance in the direction of crushing and thereby, the absorbed energy. Therefore, an Energy Correction Factor (ECF) is needed for applications of crush coefficients to oblique collisions.
For further information, please see the section on Energy Correction Factor(ECF) from our book McHenry Accident Reconstruction.